Experimental study of nonlinear seepage for heavy oil

Wang Weiying; Yu Gaoming; Ke Wenli; Wang Yu; Ge Yue

doi:10.11781/sysydz201304464

Volume 35 Issue 4

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Wang Weiying, Yu Gaoming, Ke Wenli, Wang Yu, Ge Yue. Experimental study of nonlinear seepage for heavy oil[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 464-467. doi: 10.11781/sysydz201304464

Citation:

Wang Weiying, Yu Gaoming, Ke Wenli, Wang Yu, Ge Yue. Experimental study of nonlinear seepage for heavy oil[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 464-467. doi: 10.11781/sysydz201304464

Wang Weiying, Yu Gaoming, Ke Wenli, Wang Yu, Ge Yue. Experimental study of nonlinear seepage for heavy oil[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 464-467. doi: 10.11781/sysydz201304464

Citation:

Wang Weiying, Yu Gaoming, Ke Wenli, Wang Yu, Ge Yue. Experimental study of nonlinear seepage for heavy oil[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2013, 35(4): 464-467. doi: 10.11781/sysydz201304464

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Experimental study of nonlinear seepage for heavy oil

doi: 10.11781/sysydz201304464

Wang Weiying^1,2,
Yu Gaoming^1,2,
Ke Wenli^1,2,
Wang Yu^1,2,
Ge Yue^1,2

1.
Petroleum Engineering Institute, Yangtze University (Wuhan Campus), Wuhan, Hubei 430100, China
2. Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University), Wuhan, Hubei 430100, China

Received Date: 2012-09-03
Rev Recd Date: 2013-05-02
Publish Date: 2013-07-28

Abstract

Abstract

Due to the non-Newtonian behavior of heavy oil, the seepage characteristics in porous medium are different from conventional crude oil. They usually seep in nonlinear ways and there might exist threshold pressure gradients. Only when the displacement pressure gradient is greater than the threshold pressure gradient, heavy oil begins to flow, and the seepage rule deviates from Darcy's law. Through laboratory experiments, this paper designs a method for measuring threshold pressure gradient appropriately. Natural core samples and simulated oil are used to measure threshold pressure gradient by setting different flow rates. In this way, the impact of flow rate on threshold pressure gradient is studied. The results show that the threshold pressure gradient would be affected when the displacing rate exceeds a critical value. Therefore, in the process of measuring real threshold pressure gradient of a core, the choice of experimental method and displacing rate can not be ignored.
- heavy oil,
- nonlinear seepage,
- threshold pressure gradient,
- experimental study

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References(17)

References

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Experimental study of nonlinear seepage for heavy oil

doi: 10.11781/sysydz201304464

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Experimental study of nonlinear seepage for heavy oil

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